Secret Gut-Loving Carbs (Resistant Starch)
Today I want to talk to you about one of the best nutrients for your gut microbiome. It isn’t a supplement — it’s a special type of carbohydrate called resistant starch.
Your gut is at the ROOT of your health and therefore, your gut holds the key to unstoppable health.
Everything that you eat effects your gut, the part of your body from your mouth all the way to the other end. Why is your gut so important? Your gut is where you take all the good stuff you eat and drink and transform it into the many building blocks your body needs to make energy, think clearly, sleep well, maintain a healthy weight, build muscle, and clear out toxins that need clearing out daily so you can thrive. 
Your microbiome, the trillions of microorganisms that live in your gut, is always working behind the scenes to support your health. It is absolutely in your best interest to feed your microbiome quality nutrients to keep it (and you) happy.
So back to resistant starch. Unlike most carbs, resistant starch isn’t fully digested in the small intestine. Instead, it travels to the colon where it feeds your beneficial gut bacteria.
When your microbes ferment (break down) resistant starch, they produce short-chain fatty acids like butyrate, which are linked to some huge health benefits:
• improved gut barrier function
• lower inflammation
• better blood sugar regulation
• healthier metabolism
Now not all resistant starch is the same. There are four types, and they show up in different foods.
Type 1: Physically Protected Starch
This starch is trapped inside the fiber structure of whole foods, making it harder to digest until they reach your large intestine.
Good sources include:
- Lentils
- Chickpeas
- Black beans
- Intact whole grains like oats or barley
Choosing whole, minimally processed plant foods helps more of this starch reach your gut bacteria.
Type 2: Naturally Resistant Starch
Some foods naturally contain starch that resists digestion.
Common sources:
- Green bananas (green-tipped bananas contain resistant starch too, just not as much as fully green bananas)
- Green banana flour
- Raw potato starch
Adding part of an unripened banana or a green-tipped banana to a smoothie is an easy way to up your resistant starch. Another option many people do is add 1–2 teaspoons of raw potato starch or green banana flour to smoothies or yogurt as a prebiotic boost.
Type 3: Retrograded Starch
This is the easiest way to increase resistant starch in everyday meals–I love leftovers!
When foods like potatoes, rice, or oats are cooked and then cooled, their starch structure changes and becomes resistant (even if you reheat them).
Examples:
- Potato salad
- Overnight oats
- Cooked rice that’s cooled and reheated
- Leftover roasted potatoes
Type 4: Modified Resistant Starch
This form is manufactured and added to processed foods labeled “high fiber.”
Examples:
- Prebiotic supplements, RS4 (Resistant Starch Type 4)
While technically resistant starch, I encourage you to focus on whole food sources when possible.
The Takeaway
Supporting your gut microbiome doesn’t have to be complicated.
Simply include a few resistant starch foods throughout the week:
• beans or lentils
• cooked-and-cooled potatoes or rice
• overnight oats
• green bananas in smoothies
Think of resistant starch as fertilizer for your gut bacteria — keeping them happy so they can do their job producing compounds that support your digestion, metabolic health, and keep your inflammation levels balanced.
As a functional nutritionist, I don’t just help you to eat healthier: I help you create a healthier lifestyle.
If you’re ready to discover where your best health has been hiding (and what is causing your symptoms), I’d love to connect with you!
Apply for a complimentary Unstoppable Health Discovery Session. http://bit.ly/schedulinghealth (subject to availability).
Wishing you unstoppable health,
~Rebecca
P.S. If you know someone who is ready to feel great & create health habits that stick, I would love to connect with them!
Please share my scheduling link with them so that they can schedule a complimentary
Unstoppable Health Discovery Session with me.


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